telephone ringer वाक्य

उदाहरण वाक्य

1. Extension bells may be louder than ordinary telephone ringers.
2. Eventually, electronic telephone ringers became the norm.
3. It also has a telephone ringer as its horn, so instead of a honk, it rings!
4. These avoid the need to generate 20Hz 90V sinusoidal AC, but are not compatible with standard telephone ringers.
5. Buzzers were not usually designed to accommodate the 90-110 volt, 20 30Hz ringing signal used by telephone ringers.
6. Central-office powered ringers continue to function and by designating one telephone ringer per line it is possible to identify the line that is ringing.
7. Following a 1975 ruling which permitted third-party devices to be connected to phone lines, manufacturers began to produce accessory telephone ringers which rang with electronic tones or melodies rather than mechanically.